I just sewed my double eyelids the day before yesterday. After the operation, I explained that I should apply cold compress first and then hot compress. What I said is not very specific. How many days can I apply cold compress and hot compress? also Hello, generally speaking, you need cold compress for the first three days, because cold compress can shrink blood vessels and reduce bleeding and edema. You can apply hot compress in three days. At this time, there is generally no more bleeding. Hot compress can speed up blood circulation and reduce swelling. It's best not to take a shower in a hurry. If you sweat, it may cause wound infection. Better wait a few more days.